Formation of 1,2-bis (diphenylphosphino)ethane, dppe, from two coordinated diphenylvinylphosphine (DPVP) ligands; crystal structures of cis- and trans- (DPVP)2 Mo (CO)4 and (dppe)M(CO)4 (M=Cr, Mo)

Add time:08/23/2019    Source:sciencedirect.com

Photolysis of a 1:2 mixture of M(CO)6 (M=Cr, Mo) and diphenylvinylphosphine (DPVP) in tetrahydrofuran produces (DPVP)M(CO)5, cis- and trans- (DPVP)2M(CO)4, (dppe)M(CO)4 (dppe=1,2-bis (diphenylphosphino)ethane, and fac- (dppe) (DPVP)Mo (CO)3. The complexes have been characterized by elemental analysis, infrared and 1 H, 13 C{1 H} and 31 P{1 H} NMR spectroscopy and in four cases by X-ray crystallography. The Mo–P bond lengths for cis- (DPVP)2Mo (CO)4 (2.5509 (10) Å, ave.) are longer than those for the trans-isomer (2.4713 (7) Å) due to the greater trans influence of CO than of DPVP. The Mo–P bond lengths for (dppe)Mo (CO)4 (2.5020 (11) Å, ave.) lie between these two values.

We also recommend Trading Suppliers and Manufacturers of [1,2-bis(diphenylphosphino)ethane]molybdenum tetracarbonyl (cas 15444-66-3). Pls Click Website Link as below: cas 15444-66-3 suppliers

Prev:Electrochemical and X-ray photoelectron spectroscopic insights into Molybdenum(0) Fischer ethoxycarbene complexes
Next:Thiobenzyl benzyloxycarbonyl-l-lysinate, substrate for a sensitive colorimetric assay for trypsin-like enzymes1)